albatross (version 0.1-1)

[.feemcube: Extract or replace parts of FEEM cubes

Description

Extract or replace single intensities, vectors of them, whole FEEM spectra or even data cubes or their parts from a FEEM cube.

Usage

# S3 method for feemcube
[(x, i, j, k, drop = TRUE)
  # S3 method for feemcube
[(x, i, j, k) <- value

Arguments

x

A FEEM cube object.

i, j, k

Row, column and sample indices, respectively. As usual, may be integer, logical or character vectors. Omitting a parameter results in choosing the whole axis.

drop

Coerce result to the lowest possible dimension (dropping the feemcube class). This only makes sence for extracting, not replacement.

value

An array-like object to assign values from. When assigning from FEEM or FEEM cube objects, wavelengths are required to match and warnings are issued if scale factors don't match.

Value

For [: If choosing multiple values along each axis or drop is FALSE, a FEEM cube object. If choosing only one sample but multiple wavelengths, a FEEM object. Otherwise, a named numeric matrix or vector, depending on the dimensions chosen.

For [<-: a FEEM cube object.

See Also

feemcube, [.feem

Examples

# NOT RUN {
  z <- feemcube(array(1:385, c(5, 7, 11)), 1:5, 1:7, 1:11)
  str(z[1:4, 1:2, 1:2])
  z[2:3, 4:5, 3] <- feem(matrix(1:4, 2), 2:3, 4:5, 3)
  z[,,3]
# }